A/N Thanks everyone SO MUCH for the reviews and the faves/follows! You guys are all awesome!

There's a long winded A/N at the end, so I'll keep this one short. Without further ado, enjoy!

Part Two

As Mabel tried to piece together what exactly went down when she was holding that Rift thingie, she eventually sat down with her feet dangling over the edge at the highest part of the roof. It probably wasn't the safest place to hang out in the middle of an apocalypse, even with a protective barrier made of unicorn hair and whatever else Dipper and Ford used to make it, but she didn't care. As she looked down at the destroyed forest surrounding her home away from home, a morbid thought crossed her mind.

I should do everyone a favour and jump…

She immediately shoved that absurd idea from her head. The idea was stupid. The roof was high, but not that high. Unless she went head first, the most likely outcome would be that she would break a few bones and be a completely useless burden to everyone. Either way, she could never go through with something so stupid. She felt like the scum of the earth, but she wouldn't do that to her friends and family.

Thoughts of suicide though were brief and passed as quickly as they came. She had to chuckle at herself for letting such a ridiculous thought cross her mind in the first place. But the one idea that she couldn't shake was that the whole reason everyone was even in this situation was because of something that she did. She still wasn't quite sure what she did exactly, but she had a really good idea and it made her stomach churn from guilt.

She sniffed, wiping the stubborn tears that insisted on falling down her face as she wallowed in her remorse, feeling like the worst person in the world and having no idea what to do about it.

"Mabel?"

Dipper's voice from below startled her out of her thoughts and she looked down to see Dipper's head poking out of the trap door that led to their hang out spot. From where she was she was pretty much concealed so when Dipper didn't immediately see her he started back down the ladder. She was tempted to keep quiet so she wouldn't be discovered because she just wanted to be left alone for a little while longer but considering all that had happened, she didn't want to worry him when he was looking for her. She cleared her throat, forcing herself to keep her voice even.

"I'm up here," she called with an unenthusiastic wave.

"What are you doing up there?" he asked, straining his neck to see her.

"Wanted to be alone," she shrugged, "seemed like a good place. It's a little crowded in there."

"You should've said something," he said, "I was starting to get worried."

Mabel cringed, her guilt levels rising, "Sorry."

"It's OK," he replied as she heard him climb up to join her, completely ignoring her cues telling him to leave her be, much to her dismay. Didn't she say she wanted to be alone? She bit her lip to force herself not to say anything in protest.

"Stan's getting dinner ready," he said, as he sat down perpendicular to her with her facing away from him, her feet swinging freely over the edge of the roof, while he sat with his legs resting along the slope of the roof overlooking the 'M' in the Mystery Shack sign, "nothing special, just some canned pasta but considering the last few days I'm sure it's going to be amazing."

"Not hungry," she muttered, closing her eyes with a wince as she imagined Dipper hurt and alone, fending for himself struggling to survive while she feasted on anything and everything she desired.

"Really?"

"I got everything I wished for in that bubble, remember? Food wasn't exactly hard to come by."

"Yeah but…none of it was real."

"Seemed real at the time," she shrugged dismissively, looking up at the red sky as she shifted where she sat, her butt getting a little numb from sitting along the peak of the roof. Dipper put his hand on her shoulder and pulled her back slightly when she wobbled unsteadily as she moved.

"Are you sure it's safe to be up here?" he asked.

Mabel shrugged, "I've been up here before, it's no big deal."

"Yeah but… before there wasn't any Weirdmageddon," Dipper pointed out worriedly. She glanced behind her to look at him but then quickly looked away again.

"The Mystery Shack is protected, remember?"

"I know, I know but…" he sighed, "I'd feel a little better if you weren't so close to the edge. Think you could…maybe…?"

Mabel sighed and swung her legs around so she was facing the same direction as him and they both scooted a little further from the edge where it was safer. At least if one of them slipped there was a giant sign to break their fall and not the ground two stories below.

"Thanks," he said, and she could hear the relief in his voice.

"Mmm," she shrugged as she pulled her knees to her chest and hugged her legs, looking out into the distance.

Dipper followed her line of sight and then glanced back at her, "It's a lot to take in, isn't it?"

"Yeah," she nodded, pulling the collar of her sweater up to her nose again and then tugging the hem over her knees.

"Must really be weird for you since you didn't know this was going on. I'd imagine it was quite a shock to escape that bubble only to be met with…with all this."

She nodded and sniffed.

"Are you crying?" he asked after a pause, leaning to get a better look at her face.

She shook her head.

"You are crying!"

"No I'm not!" she whimpered, inwardly cursing as his question triggered the waterworks she fought to keep under control. She felt him place a comforting hand on her shoulder as she looked away from him and rested her cheek on her folded arms over her knees.

They were silent for a moment as Mabel tried to regain her composure, clearly frustrated with herself for getting so emotional. Dipper meanwhile watched her quietly, unsure of what to do. After a pause she wiped the tears from her eyes and snot from her nose and took a deep breath, sparing Dipper a quick glance and a small smile, indicating that she was OK for now.

"Wanna talk about it?" he asked gently.

She shook her head, ""All we've really done since we got here is talk. I want to do something to stop that stupid Triangle Guy and save everyone," she muttered, To fix my mistake… "put an end to this Weridpocalypse or whatever once and for all."

"Amen to that," Dipper nodded in agreement, "but we need a plan first. And rest, and food. We all need our strength if we're to defeat him."

"I'm not hungry or tired," Mabel stated, looking out into the forest, "I had it easy the last few days, I'm ready to go."

"Yeah well…I'm not. Besides, we still need a plan."

"I have a plan."

"You do?"

"Yeah! Kick his isosceles butt back to where it belongs!"

"That's not really a plan," Dipper mused with a smirk, "but I like where that idea is headed."

Mabel pulled the collar of her sweater back up to her nose, covering her eyes with her hands. She nodded but didn't say anything.

"Mabel?" Dipper prodded gently, "Are you OK?"

She glanced at him but said nothing, taking her time to respond. She sighed and looked out at the decimated forest until finally after a long moment of silence she whispered, "It's my fault. Isn't it?"

"What is?"

She gestured to the red sky and crippled woods, "All this. Bill. Everything."

"What? No!" Dipper exclaimed, "Of course not! Why would you say that?"

"Because I… I had th-the thingie!" she blurted.

"What thingie?"

"When all this started! When Bill crossed into our world, I had it! It's my fault!"

"The Rift?" Dipper realized, "Mabel…you took my bag by mistake, it was already cracking. What happened was an accident. It wasn't your fault."

"Wasn't it? How could you be sure?" Mabel asked.

"Well, tell me what happened then."

"I don't remember," she sighed, "At least not exactly. It's all kinda fuzzy… sort of like when you wake up from a crazy dream and you remember it at first but then as the day goes on you don't anymore but if you think really hard you can sort of remember bits and pieces… you know what I mean?"

Dipper thought about it and frowned, "I think so?"

"Anyway, the last thing I can clearly remember before waking up in that Bubble was Sweatertown…"

Dipper heaved a guilty sigh, "Oh Mabel…"

She looked at him, sensing his guilt for making her so upset in the first place since she only went to Sweatertown when things got really bad, "We've already been over that. It's OK."

"Mabel, I don't know what happened, but just because you had the Rift, doesn't make it your fault it broke. It was already cracking, I should've been more careful when I stored it in my backpack."

"No, you don't understand… I had it! In my hands. I was…I was holding it in my hands!" she held her hands up mimicking the motion in case it sparked a new memory. "I didn't know what it was, I thought…I didn't know how important it was. I was just….so upset and hurt and…"

"You think you broke it on purpose?" Dipper queried, taken aback, "That's not like you. No matter how mad at me you might've been, I know you wouldn't break something of mine just to spite me."

"I know," Mabel agreed, "a-and I wouldn't but… out of everyone Bill captured, why was I the only one who got a Bubble? Everyone else got turned to stone but me? I got everything I wanted."

Dipper scoffed, "Yeah, because he didn't want you to escape. He was using your fantasies to keep you there, it was part of his sick plan."

"But why me? Why wasn't I turned to stone like everyone else? Kinda hard to escape that! I ran off into the woods wishing that I didn't have to grow up, wishing summer could last forever…and I had the thingie! And then I got what I wished for. Sure it was twisted around to keep me hostage, but I didn't know that. If you guys hadn't come along and helped break the spell that stupid Bubble had over me, I might never have known that. Either way I still got what I wished for," Mabel reminded him. "Nobody else got that. So why me? Unless…unless I…"

"What are you saying?" Dipper asked, his voice going low as though he already knew where her train of thought was headed.

"I had the Rift thingie! The very thing that stupid Triangle Guy was after, I had it in my hands! He got what he wanted, and I got what I thought I wanted! You do the math!"

She put her hands to her mouth, feeling sick to her stomach, like she was going to throw up as a heavy silence filled the air and lingered for a long moment that felt much longer than it really was.

Dipper reached for her, "Mabel…"

She pulled away violently, "See? It IS my fault!"

"So…what you're saying is…you made a deal?" he asked quietly.

"Yes! I think so…maybe?" She clutched her aching stomach, wracking her brain trying to remember what happened between Sweatertown and Mabeland. It was starting to come back to her, slowly, but it was still so fragmented and vague. She could visualize the memory of holding it out to someone, and a voice echoed in her head, stuttering out her name. The voice was familiar, but she couldn't quite place it, and it was so frustrating! "I don't know for sure but…it all adds up."

She glanced at her brother, curious to find out what he thought about this revelation and immediately saw conflict in his eyes. Then denial.

"Mabel, you said it yourself—you don't even remember what happened. You're jumping to conclusions, beating yourself up over something that might not even be true," Dipper stated.

"Come on Dipper, how else do you explain it?" Mabel asked, "While everyone was going through hell, I was having the time of my life!"

"You shouldn't be feeling guilty over that," Dipper soothed but Mabel wouldn't have it.

"All this damage and suffering, it's because of me. Because I selfishly made a deal or got stupid and played right into Bill's tricks…" she cried, her vision blurring through the tears forming in her eyes. As she spoke, her words triggered a new memory.

Just hand it over and I'll do my thing!

Just a little more summer…

She gasped, doubling over as her stomach seemed to twist in knots as her guilt and regret tore at her and she cried, now knowing for sure that she was right. She didn't need any more details or memories to know it was the truth, she knew more than enough. "Everyone down there suffered through so much the last few days because I had to be a selfish idiot and allow that stupid triangle to trick me! This whole thing, it's all my fault!"

It was really starting to come back to her now all of a sudden, in brief but vivid waves of snippets, like somehow talking about it was bringing it all back. but it felt like there was more to it than that. Like it was because of the spell the Bubble had over her that she forgot everything in the first place, and now that she was free of the Bubble, she was free to remember but just needed something to trigger it. And now, the more she remembered, the worse she felt and the weight of her guilt was quickly becoming too much to carry.

Now she could remember the Time Travel guy, Bender…Blender…Blendin! That was his name! But it wasn't him. He was laughing, his eyes yellow. He dropped the thingie and stomped on it. He snapped his fingers and then… and then she was falling backwards.

"I'm so sorry Dipper! I'm so sorry," she sobbed, "I screwed up, I screwed up bad! I'm starting to remember… I just wanted summer to last forever, I was so upset and depressed and scared of growing up and that we'd grow apart and so… it was the time traveller, he said he could make summer last as long as I wanted. 'A Time Bubble' he said… oh man I was so stupid…but it also seemed so…I don't know, possible. I didn't see his eyes…I let him trick me and…and…"

"So what you're saying is…you really did let Bill Cipher trick you and made a deal. You're positive?"

She nodded, holding herself as though she'd fall apart if she didn't. Still clutching her stomach, she turned away from him, dreading to see the anger in his eyes, terrified that he'd be so angry he'd hate her forever. Not that she didn't deserve it. She helped start the Apocalypse because of her stupidity and selfishness.

To her surprise she felt Dipper scoot closer to her, one arm sliding across her back and the other resting on her shoulder as he leaned in close, "Oh man, Mabel, you're shaking!" he rubbed her back comfortingly and pulled her closer.

She turned her head towards him in disbelief, pulling away, "Y-you're not m-mad?"

"Furious. But not at you."

"But look at what I did!" she sobbed, gesturing to the red chaotic sky and damaged forest.

"You didn't do any of that," he said, "Bill and his buddies did."

"Yeah well, I'm the one who opened the door and invited them all in!" she cried, "How could I have been so stupid?"

Dipper chuckled gently, and she gaped at him incredulously, "You're saying Bill tricked you? Well, join the club."

She sniffed, blinking back tears as more fell down her cheeks, "Huh?"

"Hey remember that time when Bill decided to hijack my body and I had to use a friggin' sock puppet to communicate with you?"

"Yeah…"

"I was so obsessed with figuring out the password to that laptop I made a deal with Bill. He'd help me with the laptop, all he needed was a puppet…which turned out to be me. See? You weren't the only Pines to get tricked by Bill."

"That's different…" she sniffed.

"Yeah, the difference was that I knew exactly who I was dealing with, sounds to me like you didn't."

"Except you didn't hand over the very thing he needed to take over the world."

Dipper sighed, "Maybe, but if you didn't stop him that day, who knows what he would've done next?"

"Still, I should've been more careful, less stupid and less selfish…"

"Mabel, you were afraid and upset, he took advantage of you when you were vulnerable, just as he did to me. That's how he works. I was sleep deprived and desperate to get into that laptop, and he went after you when you were at your lowest moment."

"But I knew that he was out there and after…something."

"If you knew what the Rift was, and what it was for, would you have given it to him? To anyone?"

"Of course not!" she exclaimed, "I would've guarded it with my life!"

Now it was Dipper's turn to look guilty and he sighed, "Which makes it my fault then."

"Huh? No! Of course not!" Mabel exclaimed.

"Ford made me promise not to tell anyone about the Rift, including you. I didn't feel right about keeping secrets from you, because we're a team, you know? But I didn't want to betray Ford's trust, so I didn't argue, I didn't question it or anything. If I trusted you and told you about the Rift… then maybe this wouldn't have happened."

"But…you were just trying to respect Ford's wishes," Mabel protested, "there's nothing wrong with that. It just shows that you're trustworthy and stuff. What I did…"

"Of course there wouldn't be a Rift if Stan didn't fix the Portal…"

"But he just wanted to save his brother! Besides, I was the one who let it open, you can't blame Stan!"

"You're right because now that I think about it... I really shouldn't but... I'm going to let you in on a little secret," Dipper whispered, "This whole making a deal with Bill club, it's very exclusive, but do you know who the founding member is? Ford."

"Really?"

"He was obsessed with learning all the mysteries of the universe and Bill offered to help, but, you know, for a price," Dipper said, "so I guess it's Ford's fault. He built the Portal in the first place, remember?"

"But he didn't know this would happen! And neither did Stan or you!"

"And you did?" Dipper raised a brow.

"Well…no."

"But you still think it's your fault?"

"Yes! Because I should've known, but I had to be so stupid and selfish and…"

"By your own logic Mabel, we're all to blame. We all had a part to play in this, Ford, Stan…me," Dipper shrugged. "By your logic, I'm just as guilty as you. Maybe even more."

"Don't be ridiculous, Dipper," Mabel cried, "you did nothing wrong!"

"I should've trusted you."

"But you didn't want to betray Ford's trust! Besides, after what I did how could you ever trust me?"

"Because I know you. One innocent mistake in a moment of weakness is not going to shatter my faith in you. I know that we're an unstoppable team but by keeping secrets from you and shutting you out of a big part of my life when I started spending a lot of time with Grunkle Ford, and accepting his offer to stay without even thinking about you or talking to you about it first, I hurt you. I drove you away and put you in such a vulnerable position leaving you wide open for Bill to take advantage of you."

"Dipper…"

"So if anyone's to blame, it's me," he said quietly, his eyes downcast in shame.

"Don't say that!" Mabel exclaimed tearfully, "It wasn't your fault Bill tricked me, it was Bill's! He's the one who started it all! It's his fault! Not yours!"

Dipper's sad guilt-ridden face morphed into a sly grin and he smirked knowingly, "Exactly."

Mabel was taken aback, she gaped at him for a moment, then wiped the tears still falling freely down her face.

"He played us all for fools at some point. It was all part of his plan," Dipper continued. "His plan, his fault. He's manipulative. It's part of his game and you didn't even know it was him so no more of this blaming yourself nonsense, OK? You're too good of a person to be beating yourself up over this."

With a soft whimper Mabel threw her arms around her brother and sobbed into his shoulder while he held her and soothed her comfortingly. This time the tears were cathartic, and as she cried the deep ache in her stomach subsided and the guilt that had been eating at her and tearing her up inside melted away.

The guilt was still there when she finally felt like she had enough and was able to stop crying, but it had been reduced to practically nothing; a much lighter burden that she would carry to remind herself not to let it happen again and fuel her drive to stop Bill. She finally pulled away to give her brother a small smile.

"Feel better?" Dipper asked.

"Yeah," she replied with a sniff.

"Good," he grinned, "Now what do you say we get down from here and join everyone for canned dinner? I'm starving."

"Sounds good bro-bro," Mabel agreed, "You're right that we're going to need our strength if we're going to kick that Isosceles Monster out of our realm and back to where he belongs! He's messed with the wrong family and the wrong town. That geometrical jerkface is going down!"

Dipper laughed, "He's going to wish he never messed with the Mystery Twins—and I'm talking both generations here!"

"Ya darn tootin'!" Mabel giggled with a sniff. I must be a mess! she thought.

"I'm so glad to have you back, sis," Dipper added, seriously, "I really missed you the last few days."

"It's good to be back, broseph," Mabel replied as they made their way down the slope of the roof towards the trap door. "Thanks for everything Dipper. Thanks for saving me and always being there for me, you're the best brother a girl can ask for, did you know that?"

"Really? I thought that title went to Dippy Fresh or whatever the heck his name was."

"Nah, Dippy Fresh was a poser, I'd much rather have the real deal," Mabel scoffed lightly.

"Oh really?" Dipper asked with mock skepticism. "I thought you said he was your 'new and improved' brother or something like that."

"Hey, cut me some slack, I was under a spell!" Mabel exclaimed, playing along with a light punch to his arm.

"I hated that guy."

"You know what? Me too."

A/N Me too.

Well... there you have it. I know it's a little cheesy at the end but who doesn't like cheese once in a while? Mystery Twins for life!

The phrase "Ya darn tootin'!" that Mabel says near the end of this is something my own Grunkle used to say a lot. I included it in his memory. He passed away at the end of August last year and I miss him. He was awesome.

So anyway, this exists because I really wanted to see Dipper and Mabel acknowledge her encounter with Bill at the end of D&MvsTF. I know they probably didn't have time in "W2:EFR" and who knows, maybe the finale will address it but I'm doubtful. (at the time of posting this it has yet to air so if you're reading this after the finale, I guess you'd already know) I figured the only way Mabel wouldn't have brought it up in W2:EFR was if she didn't remember so, there you go. I know it's a little rushed with her remembering, but I needed to move the story along so...yeah.

OK, show of hands. Who's excited for the finale? I am, but at the same time I'm sad. Super sad. I'm glad it's getting a proper conclusion, something many shows don't get the chance to do, but I don't want it to end. So much that in a way I'd be perfectly happy if they delayed the finale a little longer, just so I can hold onto the anticipation. Sure, there's always reruns but I'm going to miss the theories and predictions and all around not knowing what's going to happen next.

Oh well, there's always fanfiction.

Speaking of which... I'm working on updates for my other stories, and have an A/U in the works where Weirdmageddon never happened, Dipper DID accept the apprenticeship with Ford and Mabel returns to Gravity Falls the following summer only to discover something is amiss.

Anyway, thanks for reading! Please let me know what you think! (Also, I probably won't get to see the finale until the 17th at the earliest, so if you've seen it, please no spoilers! I purposely haven't even seen a promo.!)